What is Excel binary workbook?
An Excel workbook with binary worksheet records inside a ZIP package. XLSB is useful for exchanging stored spreadsheet data with Excel.
Values are converted without running macros or recalculating formulas. Charts, formatting, and macros are not preserved.
Technical details
XLSB is an OPC ZIP package whose workbook and worksheet content use binary BIFF12 records alongside XML package parts. [1]
Background and compatibility
Microsoft documents XLSB as an Excel binary workbook format, distinct from XLSX's XML worksheet parts. [1]
Sources and references
- Excel (.xlsb) Binary File FormatMicrosoft Open Specifications
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A table of stored values from the first sheet; up to 100 rows. No formula recalculation.
Conversion support
Export workbook data as XLSX, ODS, CSV, TSV, JSON, or HTML. Text-based exports use the chosen sheet and do not preserve workbook formatting.
Read the format reference on Wikipedia ↗Technical format documentation ↗